Brother HL-1040 Quick Setup Manual page 24

Drum Lamp
The Drum lamp indicates the drum unit is nearly at the end of its life.
Lamp Printer status
The drum unit can be used.
Off
The drum unit is nearly at the end of its life. Installing a new drum unit
On
turns off this lamp.
Alarm Lamp
The Alarm lamp blinks to indicate a printer error status such as "Cover Open" and
"Memory Full." If any other error occurs, the printer indicates the error by blinking the
Alarm lamp with another lamp or by printing an error report.
Note
The Ready, Data and Drum lamps are used to indicate printer errors with the Alarm
lamp. See "ALARM INDICATIONS AT A GLANCE" in this manual
corrective action for the error.
Switch
This switch will be used for the following purposes depending on the situation.
Cancel printing
If you press the switch during printing, the printer immediately stops printing and
ejects the paper.
Wake-up
If the printer is in sleep mode, pressing the switch wakes it up into the ready state.
Form Feed
If the Data lamp is on, press the switch. The printer prints any data remaining in the
printer memory: this operation is called "Form Feed."
Error Recovery
If an error occurs, the printer will recover from some errors automatically. If the error
does not clear automatically, press the switch to clear the error and continue printer
operation.
See "REPLACING THE DRUM UNIT".
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and take